ivanhoe manufacturing uses flexible budgets to control its selling expenses. monthly sale are expected to be from $404,000 to $484,000. variable costs and their percentage relationships to sales are:

sales commissions 6%

advertising 4%

traveling 5%

delivery 1%

fixed selling expenses consist of sales salaries $84,000 and depreciation on delivery equipment $24,000.

prepare a flexible budget for increments of $40,000 of sales within the relevant range.